Skin is on fire, no hives, lips, eyelids, soles feel raw. exercise makes worse. flushes and feels like fiberglass. does it throughout the day? why?

Flushing: Your symptoms are nonspecific and could be due to rise in blood pressure, acceleration of heart rate, overactive thyroid, adrenal gland disorder, excessive heat or medications causing dilation of blood vessels. Start the investigation with your physician taking a thorough history, performing a physical examination and then ordering any appropriate tests.